Euclid Elementary

As a moderately sized primary school in Ontario, California, Euclid Elementary teaches 572 students from grades K through 6, one of the schools within Ontario-Montclair. Enrollment runs roughly 23% above the state mean of about 465.

Across the 33 schools in Ontario-Montclair (17,640 students total), Euclid Elementary accounts for its share of the district's footprint.

On the student-mix side, Euclid Elementary shows that nearly all students (92%) are Hispanic. Beyond that, the school shows 3% Native American. By comparison, San Bernardino County as a whole is about 55% Hispanic, so the school skews noticeably more Hispanic than its surroundings.

On the income-and-resources front, Staff filings list 27 full-time-equivalent teachers, which works out to roughly 21.1:1 students per teacher. That figure is tighter than the state norm's 22.3:1 average. An estimated 89% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. By comparison, San Bernardino County runs at roughly 74%, so the school's eligibility rate is higher than the surrounding baseline.

Adjusting for the school's free-and-reduced-lunch share, Euclid Elementary sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 26.3%; this one delivers 30.4%.

In the broader community, ACS estimates for San Bernardino County put median household earnings sit near $85,478, 23% of adults hold a bachelor's degree or higher, and the poverty rate sits near 11%. Across San Bernardino County's 583 public schools (combined enrollment of about 393,648 students), Euclid Elementary is one campus in the mix.

Nearest neighbor: De Anza Middle, around 0.4 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Among the 8 schools in that immediate cluster with test data (this one included), Euclid Elementary ranks 8th on composite proficiency, below the local average of 36.5%.

The campus sits in an inner-city setting.

Trend over the last 7 years. Looking back 7 years, enrollment at Euclid Elementary has ticked down 19%, going from 709 students in 2018 to 572 in 2025. Hispanic enrollment moved from 98% to 92% across the same window. The student-to-teacher ratio tightened from 24.4:1 in 2018 to 21.1:1 today.

Within the allk12 community for this school, the feed for Euclid Elementary typically covers sports schedules, lunch menu changes, and school spirit week. Contributors range from current parents to recent graduates and teachers.